package com.xxxy.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;
import org.springframework.security.oauth2.provider.ClientDetailsService;
import org.springframework.security.oauth2.provider.client.JdbcClientDetailsService;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.JdbcTokenStore;

import javax.sql.DataSource;

/**
 * 进行授权配置
 */
@Configuration
public class AuthServerConfig extends AuthorizationServerConfigurerAdapter {

    @Autowired
    private BCryptPasswordEncoder passwordEncoder;

    @Autowired
    private AuthenticationManager authenticationManager;

    @Bean
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource dataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean
    public TokenStore jdbcTokenStore() {
        return new JdbcTokenStore(dataSource());
    }

    @Bean
    public ClientDetailsService jdbcClientDetailsService() {
        return new JdbcClientDetailsService(dataSource());
    }

    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        //第4步：从数据库中读取客户端凭证
        clients.withClientDetails(jdbcClientDetailsService());
    }

    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
        //第5步：打开Oauth2端点
        security.tokenKeyAccess("permitAll()")
                .checkTokenAccess("isAuthenticated()")
                .allowFormAuthenticationForClients();
    }

    @Autowired
    private UserDetailsService userDetailsService;

    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) {
        //使用密码模式，必须重写此方法，并调用授权管理器
        endpoints
                .authenticationManager(authenticationManager)
                .tokenStore(jdbcTokenStore())//token存储方式
                .userDetailsService(userDetailsService);// 读取验证用户信息
    }

}
